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BOSTON MARATHON 2023

Marisa O'toole

Bib: 17008•F

NY

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:19
Rank: #15086
Start → 5K
25:19 | 8:09/mi
10K· 6.21 mi
50:22
Rank: #15167 (-81)
5K → 10K
25:03 | 8:04/mi
15K· 9.32 mi
1:15:49
Rank: #15381 (-214)
10K → 15K
25:27 | 8:11/mi
20K· 12.43 mi
1:41:58
Rank: #15617 (-236)
15K → 20K
26:09 | 8:25/mi
Half· 13.11 mi
1:47:45
Rank: #15712 (-95)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:09:06
Rank: #16110 (-398)
Half → 25K
21:21 | 8:48/mi
30K· 18.64 mi
2:37:43
Rank: #16533 (-423)
25K → 30K
28:37 | 9:13/mi
20M
2:50:22
Rank: #16656 (-123)
30K → 20M
12:39 | 9:19/mi
21M
3:00:24
Rank: #16749 (-93)
20M → 21M
10:02 | 10:02/mi
35K· 21.75 mi
3:07:05
Rank: #16765 (-16)
21M → 35K
6:41 | 8:56/mi
23M
3:18:51
Rank: #16850 (-85)
35K → 23M
11:46 | 9:24/mi
24M
3:28:40
Rank: #17061 (-211)
23M → 24M
9:49 | 9:49/mi
40K· 24.85 mi
3:37:30
Rank: #17303 (-242)
24M → 40K
8:50 | 10:20/mi
25.2M
3:41:09
Rank: #17359 (-56)
40K → 25.2M
3:39 | 10:35/mi
Finish· 26.22 mi
3:51:23
Rank: #17648 (-289)
25.2M → Finish
10:14 | 10:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:45
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time2:03:38
Pace9:26 /mi
📊Positive Split: 14.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:5725:198:0925:19
8:09
-
10K
6.21 mi11:41:0050:228:0625:03
8:04
-0:05
15K
9.32 mi12:06:271:15:498:0825:27
8:11
+0:07
20K
12.43 mi12:32:361:41:588:1226:09
8:25
+0:14
Half
13.11 mi12:38:231:47:458:135:47
8:29
+0:04
25K
15.53 mi12:59:442:09:068:1921:21
8:48
+0:19
30K
18.64 mi13:28:212:37:438:2828:37
9:13
+0:25
20M
20.00 mi13:41:002:50:228:3112:39
9:19
+0:06
21M
21.00 mi13:51:023:00:248:3510:02
10:02
+0:43
35K
21.75 mi13:57:433:07:058:366:41
8:56
-1:06
23M
23.00 mi14:09:293:18:518:3911:46
9:24
+0:28
24M
24.00 mi14:19:183:28:408:429:49
9:49
+0:25
40K
24.85 mi14:28:083:37:308:458:50
10:20
+0:31
25.2M
25.20 mi14:31:473:41:098:473:39
10:35
+0:15
Finish
26.22 mi14:42:013:51:238:5010:14
10:03
-0:32

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:04 /mi

Average Pace

8:50 /mi

Slowest Pace

10:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:09:06

56% of race

Time at Steady Pace

59:43

26% of race

Time at Slower Pace

42:34

18% of race

Average Pace: 8:49 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:15:5725:198:0925:19
8:09
#15086
10K
6.21 mi11:41:0050:228:0625:03
8:04
#15167
15K
9.32 mi12:06:271:15:498:0825:27
8:11
#15381
20K
12.43 mi12:32:361:41:588:1226:09
8:25
#15617
Half
13.11 mi12:38:231:47:458:135:47
8:29
#15712
25K
15.53 mi12:59:442:09:068:1921:21
8:48
#16110
30K
18.64 mi13:28:212:37:438:2828:37
9:13
#16533
20M
20.00 mi13:41:002:50:228:3112:39
9:19
#16656
21M
21.00 mi13:51:023:00:248:3510:02
10:02
#16749
35K
21.75 mi13:57:433:07:058:366:41
8:56
#16765
23M
23.00 mi14:09:293:18:518:3911:46
9:24
#16850
24M
24.00 mi14:19:183:28:408:429:49
9:49
#17061
40K
24.85 mi14:28:083:37:308:458:50
10:20
#17303
25.2M
25.20 mi14:31:473:41:098:473:39
10:35
#17359
Finish
26.22 mi14:42:013:51:238:5010:14
10:03
#17648
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi150864705470515826(Top 59%)5186(Top 45%)5186(Top 106%)
10K6.21 mi3.10 mi15167-814754-494754-4915278(Top 57%)4847(Top 42%)4847(Top 99%)
15K9.32 mi3.11 mi15381-2144905-1514905-15115826(Top 59%)5186(Top 45%)5186(Top 106%)
20K12.43 mi3.11 mi15617-2365070-1655070-16516366(Top 61%)5571(Top 49%)5571(Top 114%)
Half13.11 mi0.68 mi15712-955131-615131-6117628(Top 66%)6265(Top 55%)6265(Top 128%)
25K15.53 mi2.42 mi16110-3985402-2715402-27117999(Top 68%)6552(Top 57%)6552(Top 134%)
30K18.64 mi3.11 mi16533-4235703-3015703-30118221(Top 68%)6775(Top 59%)6775(Top 139%)
20M20.00 mi1.36 mi16656-1235786-835786-8318068(Top 68%)6774(Top 59%)6774(Top 139%)
21M21.00 mi1.00 mi16749-935840-545840-5418154(Top 68%)6847(Top 60%)6847(Top 140%)
35K21.75 mi0.75 mi16765-165861-215861-2117646(Top 66%)6632(Top 58%)6632(Top 136%)
23M23.00 mi1.25 mi16850-855932-715932-7117942(Top 67%)6832(Top 60%)6832(Top 140%)
24M24.00 mi1.00 mi17061-2116077-1456077-14520284(Top 76%)8137(Top 71%)8137(Top 167%)
40K24.85 mi0.85 mi17303-2426230-1536230-15320822(Top 78%)8498(Top 74%)8498(Top 174%)
25.2M25.20 mi0.35 mi17359-566271-416271-4119371(Top 73%)7705(Top 67%)7705(Top 158%)
Finish26.22 mi1.02 mi17648-2896444-1736444-17321881(Top 82%)9052(Top 79%)9052(Top 185%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

15826

Females

5186

F18-39

5186

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15278

Females

4847

F18-39

4847

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

15826

Females

5186

F18-39

5186

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

16366

Females

5571

F18-39

5571

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

17628

Females

6265

F18-39

6265

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

17999

Females

6552

F18-39

6552

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

18221

Females

6775

F18-39

6775

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

18068

Females

6774

F18-39

6774

20M→21M

20.0 - 21.0 mi

Top 68%
×8stories
+106ft-24ft

Overall

18154

Females

6847

F18-39

6847

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

17646

Females

6632

F18-39

6632

35K→23M

21.8 - 23.0 mi

Top 67%
×5stories
+23ft-63ft

Overall

17942

Females

6832

F18-39

6832

23M→24M

23.0 - 24.0 mi

Top 76%
×6stories
+12ft-82ft

Overall

20284

Females

8137

F18-39

8137

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

20822

Females

8498

F18-39

8498

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

19371

Females

7705

F18-39

7705

25.2M→Finish

25.2 - 26.2 mi

Top 82%
×2stories
+22ft-21ft

Overall

21881

Females

9052

F18-39

9052

Passing Analysis

Category:
Athletes Passed
870
Passed By
3432
Net Change
-2562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15086
5K → 10K262343-81#15086#15167
10K → 15K103317-214#15167#15381
15K → 20K105341-236#15381#15617
20K → Half11106-95#15617#15712
Half → 25K59457-398#15712#16110
25K → 30K75498-423#16110#16533
30K → 20M45168-123#16533#16656
20M → 21M54147-93#16656#16749
21M → 35K4056-16#16749#16765
35K → 23M51136-85#16765#16850
23M → 24M21232-211#16850#17061
24M → 40K19261-242#17061#17303
40K → 25.2M1672-56#17303#17359
25.2M → Finish9298-289#17359#17648
TOTALS8703432-2562
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing